Perhaps the first of an AF GE90-115B but in December 2005, an AF 777 had to divert into Irkutsk due to engine issues en route Seoul to CDG (this flight is operated today by a -300ER but I don't know if the incident was to a -300ER or a -200ER); and, IIRC, it was an AF 777 that had to divert into Tenerife also due to engine issues a long time ago. It's certainly not an unknown phenomenon.